Bug Description

When we install the plugin in a multisite environment and "Network Activate" the plugin, the default settings are only saved for the main site and not all the sites in the network.

Steps to reproduce

1. Install Performance Lab plugin in a WordPress multisite environment
2. "Network Activate" the plugin
3. Check the default settings for the Performance Lab plugin in any site other than main site

Screenshots

As can be seen none of the options are selected.

Additional Context

• PHP Version: 7.4
• Plugin Version: 1.0.0-beta.1